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25 August, 12:45

Lesson 2-3

21. 6 - 2 (x + 6) = 3x + 4

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  1. 25 August, 12:58
    0
    Step by step:

    6 - 2 (x + 6) = 3x + 4

    6 - 2x - 12 = 3x + 4

    6 - 12 = 5x + 4

    -6 = 5x + 4

    -10 = 5x

    -2 = x

    So, x = - 2
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